Harmonized local longitudinal RCT data
Four NIH studies performed in Massachusetts, collected with the same 24-hour dietary recall method.
VIP-iPAT harmonized database
iPAT: Intelligent Diet Quality Pattern Analysis for Harmonized MA-National Trials
Understanding human food intake behavior and related health risks is critical for important societal goals such as preventing or managing many chronic conditions, promoting well-being and safety, and improving life-long health learning. Harnessing a number of harmonized dietary data from highly-comparable local and national trials, our innovative Intelligent Diet Quality Pattern Analysis (iPAT) tool will provide a more robust identification and visualization of diet-quality patterns and clarify our understanding of diet-disease relationships for a range of people over time and across geographic regions. Our work will help grow more valid evidence for formulating dietary guidelines and may enable better personalized, adaptive dietary strategies.
Harmonized local & national data
Harmonized Local and National Longitudinal RCT and OS data
Newly harmonized data are generated from seven highly-comparable longitudinal studies that span up to 35 years and cross 50 clinical and health community centers funded by NIDDK, NHLBI, and NIMH.
Four longitudinal randomized controlled trials (RCT) in Massachusetts, and three large-scale longitudinal multi-site national studies, an RCT and one observational study (OS) from the Women’s Health Initiative (WHI), and one OS from the Coronary Artery Risk Development in Young Adults (CARDIA) study.
These local and national dietary data are harmonized, because: 1) all dietary intake results are averaged as daily nutrient or food intake even though the time period of data collection may vary; 2) for all diet assessment instruments, the foods and nutrient composition of foods were obtained from the same source, the Nutrition Data System for Research (NDSR), a software program developed at the Nutrition Coordinating Center of the University of Minnesota; and 3) the 24-hour dietary recalls (24-h recall) and the CARDIA diet history utilized the NDSR food grouping system, resulting in 10 major food groups and 168 food subgroups, that can be matched with the same 122 food categories listed on the WHI food frequency questionnaires (FFQ).
Harmonized national longitudinal RCT and OS data
Three NIH large-scale longitudinal studies from the Women’s Health Initiative and CARDIA.